0% (1973)

51% (2018)

48% (1971)

56% (1970)

45% (1955)

46% (1974)

57% (1970)

60% (1972)

71% (1969)

55% (1973)

53% (1969)

65% (1971)

20% (1970)

85% (1969)

20% (1979)

35% (1952)

46% (1967)